[BUGFIX] Fix 404 for ajax-loader.gif of slick slider
See default value "./" of $slick-loader-path: it links to a folder instead of to a file.
The extension's "t3olayout/" folder was missing from the path.
See default value "./" of $slick-loader-path: it links to a folder instead of to a file.
The extension's "t3olayout/" folder was missing from the path.